The forty-nine Marut demigods were also born from the womb of Diti. None of them had sons. Although they were born of Diti, King Indra gave them a position as demigods.

PURPORT

Apparently even demons can be elevated to positions as demigods when their atheistic character is reformed. There are two kinds of men throughout the universe. Those who are devotees of Lord Viṣṇu are called demigods, and those who are just the opposite are called demons. Even the demons can be transformed into demigods, as the statement of this verse proves.